-LRB- CNN -RRB- -- What is seen by some as the holy four-day weekend for geek culture at San Diego Comic-Con has gone mainstream in a big way for the past few years .

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Starting today , there will be panels called `` I Ca n't Write , I Ca n't Draw , But I Love Comics ! '' and `` Indie Comics Marketing 101 '' taking place alongside `` USA Network 's ` Psych ' '' and `` Aloha , Earth ! '' a panel about CBS ' upcoming remake of `` Hawaii Five-0 . ''

But this recent spate of panels about movie and TV properties with no sci-fi or comic book elements has some fans fuming .

`` The mainstream TV and film representation at Comic-Con has outstripped the original essence of the convention , '' said iReporter Brad Powers who attended Comic-Con the past two years , mainly for the panels on `` Lost . '' He believed that this `` mainstreaming '' of the convention has played a hand in it being filled to capacity .

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For one panel , Powers said he arrived a full 45 minutes before it was set to begin . `` Thirty minutes passed and I thought for sure I was getting closer to the front door . Finally , 10 minutes after the start , some nice Con attendee started walking back through the line to let everyone know that they were full up and no one else would be getting in . ''

Powers is not attending the convention this year since `` Lost '' has ended .

One iReporter , Michelle Cruz , has not attended in years . `` I do n't even try anymore , '' she said . '' `` They should have a Commercialism-Con and bring back Comic-Con the way it used to be . ''

`` It 's too crowded , too commercial , and , oh yea , it sells out before you even know who 's gon na be there , '' she said .

`` I 'd be really disappointed spending my money and seeing that I was gon na go to a panel discussion about -LSB- the Fox series -RSB- ` Glee . ' ''

The fact that `` Glee '' attended last year -LRB- and is returning this year -RRB- certainly seemed to fuel anger among some Comic-Con devotees .

`` It used to be the coolest thing in the world and now it 's just a reason not to drive downtown for a few days . ''

Erin O'Donoghue , a hardcore fan of `` Chuck , '' is one of those who disagrees . `` I am not one of those who believe it should remain solely in the realm of comics and their related forms of media , '' she said . `` I personally really enjoy the fact that SDCC has become a celebration of popular culture and every entertainment medium . ''

Even those who have covered the convention have differing opinions about it . Vic Holtreman of Screenrant.com does n't think that non-genre panels are a very good idea .

`` I guess the studios figure , well , as long as we 're here we might as well throw this movie out there . ... Maybe we give this a little boost , '' he said . `` Last year , at one of the studio panels , they had the Mike Judge film , ` Extract , ' and people saw the footage . Then the movie completely tanked . ''

Fanbolt.com 's Emma Loggins , on the other hand , sees a place for these kinds of panels at Comic-Con . `` I think that what it 's really about is anything that has a strong fan base . It also brings in other people to the convention that otherwise would n't be interested , '' she said .

Quite a few people she has talked to , however , disagree with her . She even recalls a quite vocal reaction last year to a movie that , on the surface , would seem like a good fit . `` Con-goers were protesting at the Summit Entertainment booth saying ... with signs , ` Twilight Ruined Comic Con , ' because fans could n't get into see panels earlier in the day because of the thousands of ` Twilight ' fans that descended on Hall H. ''

This year , those fans can breathe a sigh of relief , since the cast of `` The Twilight Saga '' wo n't be there -- this year . But there are plenty of other panels , such as one for Will Ferrell 's cop comedy `` The Other Guys , '' which will ensure the debate continues .

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Longtime fans of Comic-Con are n't impressed by non-genre panels

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Some think the pop culture expansion of Comic-Con caters is counter to original purpose

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Many Comic-Con visitors were upset that `` Twilight '' fans created traffic jams last year